C注释转换到C++注释项目

来源：互联网发布：52pk软件下载编辑：程序博客网时间：2024/05/20 16:00

.h文件

#ifndef__COMMENT_CONVERT_H__

#define__COMMENT_CONVRET_H__

#include<stdio.h>

#include<stdlib.h>

#defineINPUTFILENAME "input.c"

#defineOUTPUTFILENAME"output.c"

typedefenumCONVERT_STATE

{

NULL_STATE,

C_STATE,

CPP_STATE,

END_STATE

}StateType;

voidCommentConvert();

voidConvertWork(FILE*read,FILE*write);

voidDoNullState(FILE*read,FILE*write);

voidDoCState(FILE*read,FILE*write);

voidDoCppState(FILE*read,FILE*write);

#endif

.c文件

#define_CRT_SECURE_NO_WARNINGS1

#include"CommentConvert.h"

StateTypestate;

voidDoCppState(FILE*read,FILE*write)

{

intfirst = fgetc(read), second = 0;

switch(first)

{

case'\n':

fputc(first,write);

state = NULL_STATE;

break;

caseEOF:

//fputc(first, write);

state = END_STATE;

break;

default:

fputc(first,write);

break;

}

voidDoCState(FILE*read,FILE*write)

{

intfirst = fgetc(read), second = 0,third=0;

switch(first)

{

case'*':

second = fgetc(read);

if(second =='/')

{

third = fgetc(read);

if(third =='\n')

fputc(third,write);

else

{

ungetc(third,read);

fputc('\n',write);

}

state = NULL_STATE;

}

elseif(second =='*')

{

ungetc(second,read);

fputc(first,write);

}

else

{

fputc(first,write);

fputc(second,write);

}

break;

case'\n':

fputc(first,write);

fputc('/',write);

break;

caseEOF:

//fputc(first, write);

state = END_STATE;

break;

default:

fputc(first,write);

break;

}

voidDoNullState(FILE*read,FILE*write)

{

intfirst = fgetc(read), second = 0;

switch(first)

{

case'/':

second = fgetc(read);

if(second =='/')

{

state = CPP_STATE;

fputc(first,write);

fputc(second,write);

}

elseif(second =='*')

{

fputc(first,write);

fputc('/',write);

state = C_STATE;

}

else

{

fputc(first,write);

fputc(second,write);

}

break;

caseEOF:

fputc(first,write);

state = END_STATE;

break;

default:

fputc(first,write);

break;

}

voidConvertWork(FILE*read,FILE*write)

{

state = NULL_STATE;

while(state != END_STATE)

{

switch(state)

{

caseNULL_STATE:

DoNullState(read,write);

break;

caseC_STATE:

DoCState(read,write);

break;

caseCPP_STATE:

DoCppState(read,write);

break;

}

voidCommentConvert()

{

FILE*pRead, *pWrite;

pRead = fopen(INPUTFILENAME,"r");

if(pRead ==NULL)

{

perror("INPUTFILENAME");

system("pause");

exit(EXIT_FAILURE);

}

pWrite = fopen(OUTPUTFILENAME,"w");

if(pWrite ==NULL)

{

perror(OUTPUTFILENAME);

fclose(pRead);

system("pause");

exit(EXIT_FAILURE);

}

ConvertWork(pRead, pWrite);

fclose(pRead);

fclose(pWrite);

}

测试部分

#define_CRT_SECURE_NO_WARNINGS1

#include"CommentConvert.h"

voidTest()

{

CommentConvert();

}

intmain()

{

Test();

system("pause");

return0;

}

input.c

output.c

利用状态机把此问题中涉及的分为3个状态，即C状态，C++状态，NULL状态，当遍历到某一个\n，/*,//时，要分情况这三个状态之间转换

0 0